Improvement in anchors



n. z. EVANS.

ANGHORS.

Nc .181,928. Patented Sept. 5, 1876.

NPEI'ERS. PROTO-LITHOGRAPNER, WASHINGTON. D O.

which the shank A is pivoted.

' properly presented for NITED STATES PATENT OFFICE.

DAVID z. EVANS, OF TOWN POINT, MARYLAND.

.IMPROVEMENT IN ANCHORS- Specification forming part of Letters PatentNo. 181,928, dated September 5, 1876; application filed August 17, 1876.

To all whom it may concern:

Be it known that I, DAVID Z. EVANS, of Town Point, in the county ofCecil and State of Maryland, have invented a new and useful Improvementin Anchors; and I do hereby declare the following to be a clear andexact description of the nature thereof, sufficient to enable othersskilled in the art to which my invention appertains to fully understand,make, and use the same, reference being had'to the accompanyingdrawings, making part of this specification, in which- Figure l'is aside elevation of the anchor embodying my invention. Fig. 2 is a centrallongitudinal section thereof. Fig. 3 is a front view thereof.

Similar letters of reference indicate corresponding parts in the severalfigures.

My invention relates to an improvement in the class of anchors havingpivoted flukes; and it consists of a cap formed with or securelyfastened to the fluke-arms, so as to occupy a position adjacent to thecrown thereof, whereby the flukes will be elevated, and they willimmediately penetrate when the cable is tightened, and they will besupported at the proper angle, and, furthermore, strengthened andbraced.

Referring to the drawings, A represents the shank, and B the fluke-arms,to the crown of 0 represents a cap of the form of the section of ahollow sphere, which is secured to or formed with the fluke-arms B,adjacent to the crown thereof, and it has a common motion with said armsB, the concave face of the cap being in front.

It will be seen that when the anchor rests on the ground the cap Oelevates the crown thereof, so that the points of the palms arepenetration, as shown in Fig. 1.

When the cable is tightened and penetration occurs or the palms engage,the parts are elevated, as shown in Fig. 2, in which posi tion the cap 0comes to a bearing against the shank A, thus limiting the motion of theflukearms and taking up the strain thereon, and supporting thefluke-arms at the proper angle.

Moreover, the cap serves to strengthen and brace the fluke arms, andconsequently strengthen the anchor, and it also possesses considerableholding power before the flukes are thoroughly embedded.v

It is evident thatby my invention it is practicable and inexpensive toalter the old pattern of anchors, so that both flukes may at the sametime exercise holding power.

If desired, the cap may be re-enforced by bars or plates securedthereto, so as to increase its strength.

D represents collars which are formed on the crown portion of thefluke-arms, so as to circumscribc the sides of the shank A at theportion adjacent to the axis of the fluke'arms, and saidcollars may beextended so as to be connected to the cap 0, or they may be made in theform of stirrups, which encircle the crown portion of the fluke-arms,embrace the sides of the adjacent end of the shank. and are secured tothe cap 0. These collars D prevent lateral play of the shank, and serveto strengthen the connection of the fluke-arms and shank.

The shank A is formed with an enlargement or swell, E, at or about thepart against which the cap or stop of the fluke-arms comes in contactwhen the fluke-arms are in holding position, so that the shankwill beenabled to withstand the great strain against said part, and the angleat which the fluke-arms will stand may be regulated by the extent of theenlargement.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is'

1. The cap 0, formed with or secured to the pivoted fluke-arms B,substantially as and for the purpose set forth.

2. The shank A, formed with an, enlargement or swell, E, for the stop ofthe flukearms, substantially as and for the purpose set forth.

D. Z. EVANS. Witnesses:

JOHN A. WIEDERSHEIM, H. E. HINDMARsH.

